• Stefan Richter's avatar
    firewire: core: optimize propagation of BROADCAST_CHANNEL · 7889b60e
    Stefan Richter authored
    Cache the test result of whether a device implements BROADCAST_CHANNEL.
    This minimizes traffic on the bus after each bus reset.  A majority of
    devices does not implement BROADCAST_CHANNEL.
    
    Remove busy retries; just rely on the hardware to retry requests to busy
    responders.  Remove unnecessary log messages.
    
    Rename the flag is_irm to broadcast_channel_allocated to better reflect
    its meaning.  Reset the flag earlier in fw_core_handle_bus_reset.
    
    Pass the generation down as a call parameter; that way generation can't
    be newer than card->broadcast_channel_allocated and device->node_id.
    Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
    7889b60e
fw-topology.c 14.7 KB